Home / 7,870.34-11,817.14-5,254.14

Finding the Fourth Proportional to 7,870.34, 11,817.14 and 5,254.14

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Solution

The fourth proportional to 7,870.34, 11,817.14 and 5,254.14 is: 7,888.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,870.34 : 11,817.14 = 5,254.14 : x
  2. Step 2: Convert to fraction form
    7,870.34/11,817.14 = 5,254.14/x
  3. Step 3: Cross multiply
    7,870.34x = 11,817.14 × 5,254.14
  4. Step 4: Simplify right side
    7,870.34x = 62,088,881.69
  5. Step 5: Solve for x
    x = 62,088,881.69/7,870.34
  6. Step 6: Final answer
    x = 7,888.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.