Home / 10,420.65-14,379.59-5,883.08

Finding the Fourth Proportional to 10,420.65, 14,379.59 and 5,883.08

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Solution

The fourth proportional to 10,420.65, 14,379.59 and 5,883.08 is: 8,118.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,420.65 : 14,379.59 = 5,883.08 : x
  2. Step 2: Convert to fraction form
    10,420.65/14,379.59 = 5,883.08/x
  3. Step 3: Cross multiply
    10,420.65x = 14,379.59 × 5,883.08
  4. Step 4: Simplify right side
    10,420.65x = 84,596,177.02
  5. Step 5: Solve for x
    x = 84,596,177.02/10,420.65
  6. Step 6: Final answer
    x = 8,118.13

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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.