Home / 15,876.65-21,908.13-9,501.95

Finding the Fourth Proportional to 15,876.65, 21,908.13 and 9,501.95

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Solution

The fourth proportional to 15,876.65, 21,908.13 and 9,501.95 is: 13,111.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,876.65 : 21,908.13 = 9,501.95 : x
  2. Step 2: Convert to fraction form
    15,876.65/21,908.13 = 9,501.95/x
  3. Step 3: Cross multiply
    15,876.65x = 21,908.13 × 9,501.95
  4. Step 4: Simplify right side
    15,876.65x = 208,169,846.31
  5. Step 5: Solve for x
    x = 208,169,846.31/15,876.65
  6. Step 6: Final answer
    x = 13,111.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.