Home / 13,953.40-20,931.96-4,590.32

Finding the Fourth Proportional to 13,953.40, 20,931.96 and 4,590.32

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Solution

The fourth proportional to 13,953.40, 20,931.96 and 4,590.32 is: 6,886.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.40 : 20,931.96 = 4,590.32 : x
  2. Step 2: Convert to fraction form
    13,953.40/20,931.96 = 4,590.32/x
  3. Step 3: Cross multiply
    13,953.40x = 20,931.96 × 4,590.32
  4. Step 4: Simplify right side
    13,953.40x = 96,084,394.63
  5. Step 5: Solve for x
    x = 96,084,394.63/13,953.40
  6. Step 6: Final answer
    x = 6,886.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.