Home / 11,457.18-15,810.16-6,740.55

Finding the Fourth Proportional to 11,457.18, 15,810.16 and 6,740.55

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Solution

The fourth proportional to 11,457.18, 15,810.16 and 6,740.55 is: 9,301.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,457.18 : 15,810.16 = 6,740.55 : x
  2. Step 2: Convert to fraction form
    11,457.18/15,810.16 = 6,740.55/x
  3. Step 3: Cross multiply
    11,457.18x = 15,810.16 × 6,740.55
  4. Step 4: Simplify right side
    11,457.18x = 106,569,173.99
  5. Step 5: Solve for x
    x = 106,569,173.99/11,457.18
  6. Step 6: Final answer
    x = 9,301.52

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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.