Home / 13,858.30-19,124.45-7,484.90

Finding the Fourth Proportional to 13,858.30, 19,124.45 and 7,484.90

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Solution

The fourth proportional to 13,858.30, 19,124.45 and 7,484.90 is: 10,329.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,858.30 : 19,124.45 = 7,484.90 : x
  2. Step 2: Convert to fraction form
    13,858.30/19,124.45 = 7,484.90/x
  3. Step 3: Cross multiply
    13,858.30x = 19,124.45 × 7,484.90
  4. Step 4: Simplify right side
    13,858.30x = 143,144,595.81
  5. Step 5: Solve for x
    x = 143,144,595.81/13,858.30
  6. Step 6: Final answer
    x = 10,329.16

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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.