Home / 19,487.86-26,875.30-12,771.04

Finding the Fourth Proportional to 19,487.86, 26,875.30 and 12,771.04

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Solution

The fourth proportional to 19,487.86, 26,875.30 and 12,771.04 is: 17,612.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,487.86 : 26,875.30 = 12,771.04 : x
  2. Step 2: Convert to fraction form
    19,487.86/26,875.30 = 12,771.04/x
  3. Step 3: Cross multiply
    19,487.86x = 26,875.30 × 12,771.04
  4. Step 4: Simplify right side
    19,487.86x = 343,225,598.50
  5. Step 5: Solve for x
    x = 343,225,598.50/19,487.86
  6. Step 6: Final answer
    x = 17,612.28

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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.