Home / 15,423.60-21,284.53-8,710.93

Finding the Fourth Proportional to 15,423.60, 21,284.53 and 8,710.93

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Solution

The fourth proportional to 15,423.60, 21,284.53 and 8,710.93 is: 12,021.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,423.60 : 21,284.53 = 8,710.93 : x
  2. Step 2: Convert to fraction form
    15,423.60/21,284.53 = 8,710.93/x
  3. Step 3: Cross multiply
    15,423.60x = 21,284.53 × 8,710.93
  4. Step 4: Simplify right side
    15,423.60x = 185,408,050.91
  5. Step 5: Solve for x
    x = 185,408,050.91/15,423.60
  6. Step 6: Final answer
    x = 12,021.06

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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.