Home / 7,578.02-10,457.53-4,221.11

Finding the Fourth Proportional to 7,578.02, 10,457.53 and 4,221.11

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Solution

The fourth proportional to 7,578.02, 10,457.53 and 4,221.11 is: 5,825.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,578.02 : 10,457.53 = 4,221.11 : x
  2. Step 2: Convert to fraction form
    7,578.02/10,457.53 = 4,221.11/x
  3. Step 3: Cross multiply
    7,578.02x = 10,457.53 × 4,221.11
  4. Step 4: Simplify right side
    7,578.02x = 44,142,400.05
  5. Step 5: Solve for x
    x = 44,142,400.05/7,578.02
  6. Step 6: Final answer
    x = 5,825.06

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.