Home / 18,547.59-25,596.78-11,378.31

Finding the Fourth Proportional to 18,547.59, 25,596.78 and 11,378.31

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Solution

The fourth proportional to 18,547.59, 25,596.78 and 11,378.31 is: 15,702.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,547.59 : 25,596.78 = 11,378.31 : x
  2. Step 2: Convert to fraction form
    18,547.59/25,596.78 = 11,378.31/x
  3. Step 3: Cross multiply
    18,547.59x = 25,596.78 × 11,378.31
  4. Step 4: Simplify right side
    18,547.59x = 291,248,097.84
  5. Step 5: Solve for x
    x = 291,248,097.84/18,547.59
  6. Step 6: Final answer
    x = 15,702.75

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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.