Home / 19,164.04-26,445.36-10,780

Finding the Fourth Proportional to 19,164.04, 26,445.36 and 10,780

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Solution

The fourth proportional to 19,164.04, 26,445.36 and 10,780 is: 14,875.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,164.04 : 26,445.36 = 10,780 : x
  2. Step 2: Convert to fraction form
    19,164.04/26,445.36 = 10,780/x
  3. Step 3: Cross multiply
    19,164.04x = 26,445.36 × 10,780
  4. Step 4: Simplify right side
    19,164.04x = 285,080,980.80
  5. Step 5: Solve for x
    x = 285,080,980.80/19,164.04
  6. Step 6: Final answer
    x = 14,875.83

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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.