Home / 15,478.98-23,206.56-7,681.74

Finding the Fourth Proportional to 15,478.98, 23,206.56 and 7,681.74

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Solution

The fourth proportional to 15,478.98, 23,206.56 and 7,681.74 is: 11,516.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,478.98 : 23,206.56 = 7,681.74 : x
  2. Step 2: Convert to fraction form
    15,478.98/23,206.56 = 7,681.74/x
  3. Step 3: Cross multiply
    15,478.98x = 23,206.56 × 7,681.74
  4. Step 4: Simplify right side
    15,478.98x = 178,266,760.21
  5. Step 5: Solve for x
    x = 178,266,760.21/15,478.98
  6. Step 6: Final answer
    x = 11,516.70

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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.