Home / 7,554.09-10,421.13-4,719.63

Finding the Fourth Proportional to 7,554.09, 10,421.13 and 4,719.63

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Solution

The fourth proportional to 7,554.09, 10,421.13 and 4,719.63 is: 6,510.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,554.09 : 10,421.13 = 4,719.63 : x
  2. Step 2: Convert to fraction form
    7,554.09/10,421.13 = 4,719.63/x
  3. Step 3: Cross multiply
    7,554.09x = 10,421.13 × 4,719.63
  4. Step 4: Simplify right side
    7,554.09x = 49,183,877.78
  5. Step 5: Solve for x
    x = 49,183,877.78/7,554.09
  6. Step 6: Final answer
    x = 6,510.89

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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.