Home / 15,856.04-21,890.30-10,827.56

Finding the Fourth Proportional to 15,856.04, 21,890.30 and 10,827.56

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Solution

The fourth proportional to 15,856.04, 21,890.30 and 10,827.56 is: 14,948.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,856.04 : 21,890.30 = 10,827.56 : x
  2. Step 2: Convert to fraction form
    15,856.04/21,890.30 = 10,827.56/x
  3. Step 3: Cross multiply
    15,856.04x = 21,890.30 × 10,827.56
  4. Step 4: Simplify right side
    15,856.04x = 237,018,373.08
  5. Step 5: Solve for x
    x = 237,018,373.08/15,856.04
  6. Step 6: Final answer
    x = 14,948.15

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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.