Home / 15,316.29-21,133.98-9,641.16

Finding the Fourth Proportional to 15,316.29, 21,133.98 and 9,641.16

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Solution

The fourth proportional to 15,316.29, 21,133.98 and 9,641.16 is: 13,303.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,316.29 : 21,133.98 = 9,641.16 : x
  2. Step 2: Convert to fraction form
    15,316.29/21,133.98 = 9,641.16/x
  3. Step 3: Cross multiply
    15,316.29x = 21,133.98 × 9,641.16
  4. Step 4: Simplify right side
    15,316.29x = 203,756,082.62
  5. Step 5: Solve for x
    x = 203,756,082.62/15,316.29
  6. Step 6: Final answer
    x = 13,303.23

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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.