Home / 10,478.20-14,459.90-5,762.48

Finding the Fourth Proportional to 10,478.20, 14,459.90 and 5,762.48

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Solution

The fourth proportional to 10,478.20, 14,459.90 and 5,762.48 is: 7,952.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,478.20 : 14,459.90 = 5,762.48 : x
  2. Step 2: Convert to fraction form
    10,478.20/14,459.90 = 5,762.48/x
  3. Step 3: Cross multiply
    10,478.20x = 14,459.90 × 5,762.48
  4. Step 4: Simplify right side
    10,478.20x = 83,324,901.17
  5. Step 5: Solve for x
    x = 83,324,901.17/10,478.20
  6. Step 6: Final answer
    x = 7,952.22

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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.