Home / 15,502.93-21,357.88-10,779.01

Finding the Fourth Proportional to 15,502.93, 21,357.88 and 10,779.01

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Solution

The fourth proportional to 15,502.93, 21,357.88 and 10,779.01 is: 14,849.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,502.93 : 21,357.88 = 10,779.01 : x
  2. Step 2: Convert to fraction form
    15,502.93/21,357.88 = 10,779.01/x
  3. Step 3: Cross multiply
    15,502.93x = 21,357.88 × 10,779.01
  4. Step 4: Simplify right side
    15,502.93x = 230,216,802.10
  5. Step 5: Solve for x
    x = 230,216,802.10/15,502.93
  6. Step 6: Final answer
    x = 14,849.89

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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.