Home / 15,569.49-21,488.84-9,751.29

Finding the Fourth Proportional to 15,569.49, 21,488.84 and 9,751.29

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Solution

The fourth proportional to 15,569.49, 21,488.84 and 9,751.29 is: 13,458.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,569.49 : 21,488.84 = 9,751.29 : x
  2. Step 2: Convert to fraction form
    15,569.49/21,488.84 = 9,751.29/x
  3. Step 3: Cross multiply
    15,569.49x = 21,488.84 × 9,751.29
  4. Step 4: Simplify right side
    15,569.49x = 209,543,971.72
  5. Step 5: Solve for x
    x = 209,543,971.72/15,569.49
  6. Step 6: Final answer
    x = 13,458.63

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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.