Home / 10,280.79-15,400.63-4,726.53

Finding the Fourth Proportional to 10,280.79, 15,400.63 and 4,726.53

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Solution

The fourth proportional to 10,280.79, 15,400.63 and 4,726.53 is: 7,080.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,280.79 : 15,400.63 = 4,726.53 : x
  2. Step 2: Convert to fraction form
    10,280.79/15,400.63 = 4,726.53/x
  3. Step 3: Cross multiply
    10,280.79x = 15,400.63 × 4,726.53
  4. Step 4: Simplify right side
    10,280.79x = 72,791,539.71
  5. Step 5: Solve for x
    x = 72,791,539.71/10,280.79
  6. Step 6: Final answer
    x = 7,080.34

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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.