Home / 7,528.69-10,389.13-4,421.63

Finding the Fourth Proportional to 7,528.69, 10,389.13 and 4,421.63

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Solution

The fourth proportional to 7,528.69, 10,389.13 and 4,421.63 is: 6,101.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,528.69 : 10,389.13 = 4,421.63 : x
  2. Step 2: Convert to fraction form
    7,528.69/10,389.13 = 4,421.63/x
  3. Step 3: Cross multiply
    7,528.69x = 10,389.13 × 4,421.63
  4. Step 4: Simplify right side
    7,528.69x = 45,936,903.80
  5. Step 5: Solve for x
    x = 45,936,903.80/7,528.69
  6. Step 6: Final answer
    x = 6,101.58

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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.