Home / 15,444.04-21,315.04-9,779.30

Finding the Fourth Proportional to 15,444.04, 21,315.04 and 9,779.30

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Solution

The fourth proportional to 15,444.04, 21,315.04 and 9,779.30 is: 13,496.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,444.04 : 21,315.04 = 9,779.30 : x
  2. Step 2: Convert to fraction form
    15,444.04/21,315.04 = 9,779.30/x
  3. Step 3: Cross multiply
    15,444.04x = 21,315.04 × 9,779.30
  4. Step 4: Simplify right side
    15,444.04x = 208,446,170.67
  5. Step 5: Solve for x
    x = 208,446,170.67/15,444.04
  6. Step 6: Final answer
    x = 13,496.87

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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.