Home / 7,865.02-10,854.12-4,328.20

Finding the Fourth Proportional to 7,865.02, 10,854.12 and 4,328.20

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Solution

The fourth proportional to 7,865.02, 10,854.12 and 4,328.20 is: 5,973.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,865.02 : 10,854.12 = 4,328.20 : x
  2. Step 2: Convert to fraction form
    7,865.02/10,854.12 = 4,328.20/x
  3. Step 3: Cross multiply
    7,865.02x = 10,854.12 × 4,328.20
  4. Step 4: Simplify right side
    7,865.02x = 46,978,802.18
  5. Step 5: Solve for x
    x = 46,978,802.18/7,865.02
  6. Step 6: Final answer
    x = 5,973.13

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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.