Home / 9,756.12-13,463.40-5,779.20

Finding the Fourth Proportional to 9,756.12, 13,463.40 and 5,779.20

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Solution

The fourth proportional to 9,756.12, 13,463.40 and 5,779.20 is: 7,975.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,756.12 : 13,463.40 = 5,779.20 : x
  2. Step 2: Convert to fraction form
    9,756.12/13,463.40 = 5,779.20/x
  3. Step 3: Cross multiply
    9,756.12x = 13,463.40 × 5,779.20
  4. Step 4: Simplify right side
    9,756.12x = 77,807,681.28
  5. Step 5: Solve for x
    x = 77,807,681.28/9,756.12
  6. Step 6: Final answer
    x = 7,975.27

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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.