Home / 7,880.04-10,864.32-6,458.52

Finding the Fourth Proportional to 7,880.04, 10,864.32 and 6,458.52

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Solution

The fourth proportional to 7,880.04, 10,864.32 and 6,458.52 is: 8,904.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,880.04 : 10,864.32 = 6,458.52 : x
  2. Step 2: Convert to fraction form
    7,880.04/10,864.32 = 6,458.52/x
  3. Step 3: Cross multiply
    7,880.04x = 10,864.32 × 6,458.52
  4. Step 4: Simplify right side
    7,880.04x = 70,167,428.01
  5. Step 5: Solve for x
    x = 70,167,428.01/7,880.04
  6. Step 6: Final answer
    x = 8,904.45

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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.