Home / 10,281.45-15,349.13-9,916.95

Finding the Fourth Proportional to 10,281.45, 15,349.13 and 9,916.95

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Solution

The fourth proportional to 10,281.45, 15,349.13 and 9,916.95 is: 14,804.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,281.45 : 15,349.13 = 9,916.95 : x
  2. Step 2: Convert to fraction form
    10,281.45/15,349.13 = 9,916.95/x
  3. Step 3: Cross multiply
    10,281.45x = 15,349.13 × 9,916.95
  4. Step 4: Simplify right side
    10,281.45x = 152,216,554.75
  5. Step 5: Solve for x
    x = 152,216,554.75/10,281.45
  6. Step 6: Final answer
    x = 14,804.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.