Home / 10,314.86-15,459.29-5,625.11

Finding the Fourth Proportional to 10,314.86, 15,459.29 and 5,625.11

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Solution

The fourth proportional to 10,314.86, 15,459.29 and 5,625.11 is: 8,430.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,314.86 : 15,459.29 = 5,625.11 : x
  2. Step 2: Convert to fraction form
    10,314.86/15,459.29 = 5,625.11/x
  3. Step 3: Cross multiply
    10,314.86x = 15,459.29 × 5,625.11
  4. Step 4: Simplify right side
    10,314.86x = 86,960,129.48
  5. Step 5: Solve for x
    x = 86,960,129.48/10,314.86
  6. Step 6: Final answer
    x = 8,430.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.