Home / 9,878.64-13,632.96-5,688.24

Finding the Fourth Proportional to 9,878.64, 13,632.96 and 5,688.24

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Solution

The fourth proportional to 9,878.64, 13,632.96 and 5,688.24 is: 7,850.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,878.64 : 13,632.96 = 5,688.24 : x
  2. Step 2: Convert to fraction form
    9,878.64/13,632.96 = 5,688.24/x
  3. Step 3: Cross multiply
    9,878.64x = 13,632.96 × 5,688.24
  4. Step 4: Simplify right side
    9,878.64x = 77,547,548.39
  5. Step 5: Solve for x
    x = 77,547,548.39/9,878.64
  6. Step 6: Final answer
    x = 7,850.02

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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.