Home / 15,461.46-23,140.35-12,688.02

Finding the Fourth Proportional to 15,461.46, 23,140.35 and 12,688.02

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Solution

The fourth proportional to 15,461.46, 23,140.35 and 12,688.02 is: 18,989.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,461.46 : 23,140.35 = 12,688.02 : x
  2. Step 2: Convert to fraction form
    15,461.46/23,140.35 = 12,688.02/x
  3. Step 3: Cross multiply
    15,461.46x = 23,140.35 × 12,688.02
  4. Step 4: Simplify right side
    15,461.46x = 293,605,223.61
  5. Step 5: Solve for x
    x = 293,605,223.61/15,461.46
  6. Step 6: Final answer
    x = 18,989.49

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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.