Home / 12,590.64-17,377.74-10,089.36

Finding the Fourth Proportional to 12,590.64, 17,377.74 and 10,089.36

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Solution

The fourth proportional to 12,590.64, 17,377.74 and 10,089.36 is: 13,925.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590.64 : 17,377.74 = 10,089.36 : x
  2. Step 2: Convert to fraction form
    12,590.64/17,377.74 = 10,089.36/x
  3. Step 3: Cross multiply
    12,590.64x = 17,377.74 × 10,089.36
  4. Step 4: Simplify right side
    12,590.64x = 175,330,274.85
  5. Step 5: Solve for x
    x = 175,330,274.85/12,590.64
  6. Step 6: Final answer
    x = 13,925.45

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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.