Home / 18,886.95-26,062.40-10,929.69

Finding the Fourth Proportional to 18,886.95, 26,062.40 and 10,929.69

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Solution

The fourth proportional to 18,886.95, 26,062.40 and 10,929.69 is: 15,082.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,886.95 : 26,062.40 = 10,929.69 : x
  2. Step 2: Convert to fraction form
    18,886.95/26,062.40 = 10,929.69/x
  3. Step 3: Cross multiply
    18,886.95x = 26,062.40 × 10,929.69
  4. Step 4: Simplify right side
    18,886.95x = 284,853,767.70
  5. Step 5: Solve for x
    x = 284,853,767.70/18,886.95
  6. Step 6: Final answer
    x = 15,082.05

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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.